/*++
"This software program is available to you under a choice of one of two 
licenses.  You may choose to be licensed under either the GNU General Public 
License (GPL) Version 2, June 1991, available at 
http://www.fsf.org/copyleft/gpl.html, or the BSD License, the text of
which follows:

Copyright (c) 1996-2005, Intel Corporation. All rights reserved.

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modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this 
list of conditions and the following disclaimer. 

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list of conditions and the following disclaimer in the documentation and/or 
other materials provided with the distribution. 

Neither the name of the Intel Corporation ("Intel") nor the names of its 
contributors may be used to endorse or promote products derived from this
software without specific prior written permission. 

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
--*/
/* 
 * xllp_pm_micco.c
 *
 * xllp_pm_micco driver for Tavor PDK
 *
 */
 
#include "xllp_bkl_micco_B0.h"
#include "micco.h"

HANDLE g_hBklMiccoDrv; //Backlight micco handle

BOOL ModifyMiccoDevReg(HANDLE phMiccoDrv, BYTE reg_address,BYTE set_mask,BYTE clear_mask,LPBYTE prevValue)
{
    BYTE reg[2];	
    BOOL ret_val;

    reg[0] = reg_address;

    ret_val = DeviceIoControl(phMiccoDrv, PIC_IO_GET_REG, reg,sizeof(BYTE), reg+1, sizeof(BYTE), NULL,NULL);
    if(!ret_val)
    {
        return FALSE;
    }
    //update original value
    if (prevValue!=NULL )
        *prevValue = reg[1];

    //set the masks
    reg[1]&= (~clear_mask);
    reg[1]|= set_mask;

    //write value to reg
    ret_val = DeviceIoControl(phMiccoDrv, PIC_IO_SET_REG, reg,2*sizeof(BYTE), NULL, 0, NULL,NULL);
    if(!ret_val)
        return FALSE;

    return TRUE;
}


BOOL XllpBklMiccoInit()
{
    if ( g_hBklMiccoDrv==NULL)
    {
        //obtain micco driver handle
        g_hBklMiccoDrv=CreateFile(PIC_FILE_NAME, 0, 0, NULL, 0, 0, NULL);
        //map OST registers
        if (g_hBklMiccoDrv == INVALID_HANDLE_VALUE)
        {
            RETAILMSG(1, (TEXT("+Backlight Enable error - INVALID_HANDLE_VALUE Micco Drv\r\n")));
            return FALSE;
	  }
    }

    return TRUE;
}

BOOL XllpBklSetPwm(BYTE dutyCycle)
{
    if ( g_hBklMiccoDrv!=NULL)
    {
        ModifyMiccoDevReg(g_hBklMiccoDrv, XLLP_MICCO_WLED_CONTROL_1, (0x1 & WLED_RAMP_MASK), WLED_RAMP_MASK, NULL);
        ModifyMiccoDevReg(g_hBklMiccoDrv, XLLP_MICCO_WLED_CONTROL_1, (dutyCycle & WLED_PWM_MASK), WLED_PWM_MASK, NULL);
        ModifyMiccoDevReg(g_hBklMiccoDrv, XLLP_MICCO_WLED_CONTROL_1, (0x0 & WLED_RAMP_MASK), WLED_RAMP_MASK, NULL);
    }
    else
    {
        return FALSE;
    }

    return TRUE;
}

BOOL XllpBklSetCurrent(BYTE current)
{
    if ( g_hBklMiccoDrv!=NULL)
    {
        ModifyMiccoDevReg(g_hBklMiccoDrv, XLLP_MICCO_WLED_CONTROL_2, ((current - 1) & WLED_ISET_MASK), WLED_ISET_MASK, NULL);
    }
    else
    {
        return FALSE;
    }

    return TRUE;
}


